40545042 has 8 divisors (see below), whose sum is σ = 81090096. Its totient is φ = 13515012.

The previous prime is 40545019. The next prime is 40545061. The reversal of 40545042 is 24054504.

It is a sphenic number, since it is the product of 3 distinct primes.

40545042 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3378748 + ... + 3378759.

It is an arithmetic number, because the mean of its divisors is an integer number (10136262).

Almost surely, 2^40545042 is an apocalyptic number.

40545042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40545042 is a wasteful number, since it uses less digits than its factorization.

40545042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6757512.

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 40545042 is about 6367.4988810364. The cubic root of 40545042 is about 343.5415347821.

Adding to 40545042 its reverse (24054504), we get a palindrome (64599546).

The spelling of 40545042 in words is "forty million, five hundred forty-five thousand, forty-two".